Perhaps if you have extra guests on the regular, you need to have a sofa bed. At the link you can download the free plans to build your own sofa bed.
Category: Beds and Bedroom Furniture
This woodworkers list of woodworking plans features a collection of bedroom furniture pieces, in particular, beds. For any moderately skilled do-it-yourselfer to build. The woodworking information found on these sites range in quantity and quality.
Queen Size Platform Bed
Use the free plans at the link to build a queen size platform bed. Remember you can modify the plans if you have another size mattress. This one was built to be standard height once complete but you can also adjust the leg length.
Platform Bed with Legs
All you will need to build this twin size platform bed with legs is 2 x 4 lumber and basic tools. Oh yeah, and the free woodworking plans available at the link. Go forth and build! You will need to scroll down the page to see the free plans.
King Size Panel Bed
You will never buy furniture again after you build your own king size panel bed. So beautiful. Just go to the link and you will find the free woodworking plans.
Modern Platform Bed
This modern platform bed can be built in any size. The free plans have the shopping list and cut list for a twin, full, queen, king, and California king size mattress. Oh, and free step-by-step inatructions.
Platform Bed
This platform bed is built using plywood and you can size it to suit any size mattress. It also eliminates the box spring and gives you plenty of storage options. Free plans at the link so get building.
Modern Cable Railing Bed
For something a little different, build a modern cable railing bed. The free plans at the link are for a queen size bed but you could adjust the measurements and use the same idea to build a different size bed.
Simple Panel Bed
This simple panel bed free plan includes shopping list, step by step diagrams, and a cut list for Twin, Full, Queen, King and California king mattress sizes. Plans made for even the beginner woodworker.
Twin Size Bed
Build this simple twin bed using this free step-by-step tutorial. Plan requires only off the shelf lumber and minimal tools.
Build a Platform Bed
You can easily modify these free plans to build a platform bed to suit what ever size mattress you have. Follow along at the link.